基于DSP的谱分析仪设计_毕业设计论文.doc

本科毕业设计论文
基于DSP的谱分析仪设计
学生姓名:
班级:
电自0913
学号:
指导教师:
所在单位:
电气工程学院
答辩日期:
2013年 6月 24日
摘要
随着计算机和微电子技术的飞速发展,基于数字信号处理的频谱分析已经应用到各个领域并发挥着重要作用。频谱分析仪对于信号分析来说是必不可少的,它可以利用频率对信号进行分析。频谱分析仪可应用于诸多领域,如通讯发射机以及干扰信号的测量,频谱的监测,器件的特性分析等,但各行各业对其性能要求也不尽相同。
本课题主要做了以下工作:首先,本文介绍了频谱分析仪的作用、课题背景、现状及发展趋势;然后,设计了以TI公司的定点数字信号处理器(DSP)TMS320VC5402为CPU的开发系统,包括复位电路、时钟电路、存储器扩展、电源模块、AD采样、DA单元、JTAG等的设计;由于CPU采用FFT算法,所以详细介绍了FFT的原理以及其在TMS320VC5402上的实现。最后,S。
关键词:TMS320VC5402;频谱分析;FFT;功率谱
Abstract
With the rapid development puter and microelectronics technology, spectrum analysis based on digital signal processing (DSP) has been applied to various fields and play an important role. A spectrum analyzer for the signal analysis is indispensable, it can make use of frequency analysis of signals. A spectrum analyzer can be applied to many fields, such munication transmitter and the interfering signal measurement, spectrum monitoring, device characteristics analysis and so on, but in all walks of life to its performance requirements are also different.
This topic mainly done the following work: first of all, this paper introduces the role of a spectrum analyzer, topic background, present situation and development trend; Then, designed by pany's fixed-point digital signal processor (DSP) TMS320VC5402 as CPU development system, including the reset circuit, clock circuit, memory expansion, a power supply module, AD sampling, DA units, such as JTAG design; Due to the CPU adopts FFT algorithm, so the principle of FFT is introduced and its implementation on TMS320VC5402. Finally, this paper briefly introduces the integrated development S for the development of DSP.
Keywords:TMS320VC5402;Spectrum analyzer;FFT;Power spectrum
目录
摘要 I
Abstract II
第1章绪论 1
课题背景及其研究现状 1
频谱分析仪发展现状 3
主要研究方法(手段) 4
设计方案介绍 5
本文安排如下 5
第2章 TMS320VC5402芯片介绍 6
TMS320VC5402的主要特性 6
TMS320C54x的总线结构 7
TMS320C54x的存储器分配 8
TMS320C54x的中央处理单元(CPU) 9
TMS320C54x片内外设简介 13
TMS320VC5402引